TY  - JOUR
AU  - Zhi-Hong Sun
TI  - On the quartic character of quadratic units
JO  - Acta Arithmetica
PY  - 2013
SP  - 89
EP  - 100
VL  - 159
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa159-1-5/
DO  - 10.4064/aa159-1-5
LA  - en
ID  - 10_4064_aa159_1_5
ER  -